IBM Support

IC88788: ADDING OF PROPERTIES IN THE PARSED PROPERTIES STRUCTURE IS CAUSING A BAD REALLOCATION OF MEMORY.

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Windows + WebSphere MQ v7.0.1.5 + Message Broker v8.0.0.1
    
    Customer noticed that upon starting Message Broker, the Broker
    Queue Manager is failing with ProbeIds:
    
    XC130031
    ZL043050
    ZL043105
    XC589160
    XC589161
    XY337010
    
    The FDC shows:
    
    WebSphere MQ First Failure Symptom Report
    =========================================
    Probe Id          :- XC130031
    Component         :- xehExceptionHandler
    Process Name      :- D:\Program Files (x86)\IBM\WebSphere
    MQ\bin\amqzlaa0.exe
    Major Errorcode   :- xecF_E_UNEXPECTED_SYSTEM_RC
    Probe Type        :- MSGAMQ6119
    Probe Description :- AMQ6109: An internal WebSphere MQ error has
    occurred.
    Comment1          :- Access Violation at address 36FB3F10 when
    reading
    ...
    
    MQM Trace History
    -------{ adhComplete
    -------} adhComplete rc=OK
    ------} aqpReadData rc=OK
    -----} aqqReadBytes rc=OK
    ----} aqqReadMsg rc=OK
    ----{ atmHardenTransaction
    -----{ atxHardenStart
    ------{ almReserveSpace
    -------{ hlgReserveLogSpace
    --------{ mqlReserveSpace
    --------} mqlReserveSpace rc=OK
    -------} hlgReserveLogSpace rc=hrcW_LOG_GETTING_FULL
    -------{ xllLongLockRequest
    ...
    
    As a result of a Severe Abend Error, a MiniDump will be
    written.
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users that open a queue with MQOO_SAVE_ALL_CONTEXT (including
    Message Broker) and perform MQGET of a message containing
    multiple RFHs with duplicate folders shared between them.
    for example:
    
    first rfh2:
    <folder1><prop1>value</prop1></folder1>
    <folder2><prop2>value</prop2></folder2>
    
    second rfh2:
    <folder1><prop3>value</prop3></folder1>
    <folder3><prop4>value</prop4></folder3>
    
    In this case, there are two instances of 'folder1' which need to
    be merged.
    
    Platforms affected:
    All Distributed (iSeries, all Unix and Windows)
    ****************************************************************
    PROBLEM SUMMARY:
    The problem was caused by a miscalculation during the parsing of
    the RFH2 folders that caused invalid access to memory.
    

Problem conclusion

  • The problem is fixed by ensuring that the folders can be merged
    correctly. A correction to the calculation logic was necessary
    to prevent memory access outside of the message data.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
                       v7.0
    Platform           Fix Pack 7.0.1.11
    --------           --------------------
    Windows            7.0.1.11
    AIX                7.0.1.11
    HP-UX (PA-RISC)    7.0.1.11
    HP-UX (Itanium)    7.0.1.11
    Solaris (SPARC)    7.0.1.11
    Solaris (x86-64)   7.0.1.11
    iSeries            7.0.1.11
    Linux (x86)        7.0.1.11
    Linux (x86-64)     7.0.1.11
    Linux (zSeries)    7.0.1.11
    Linux (Power)      7.0.1.11
    
                       v7.1
    Platform           Fix Pack 7.1.0.4
    --------           --------------------
    Windows            7.1.0.4
    AIX                7.1.0.4
    HP-UX (Itanium)    7.1.0.4
    Solaris (SPARC)    7.1.0.4
    Solaris (x86-64)   7.1.0.4
    iSeries            7.1.0.4
    Linux (x86)        7.1.0.4
    Linux (x86-64)     7.1.0.4
    Linux (zSeries)    7.1.0.4
    Linux (Power)      7.1.0.4
    
    Platform           v7.5
    --------           --------------------
    Multiplatforms     7.5.0.2
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC88788

  • Reported component name

    WMQ WINDOWS V7

  • Reported component ID

    5724H7220

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-12-03

  • Closed date

    2013-03-28

  • Last modified date

    2013-03-28

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

    PM85839

Fix information

  • Fixed component name

    WMQ WINDOWS V7

  • Fixed component ID

    5724H7220

Applicable component levels

  • R701 PSY

       UP

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Document Information

Modified date:
22 September 2021